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Finding the Fourth Proportional to 341,406.20, 512,109.30 and 164,259.20

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Solution

The fourth proportional to 341,406.20, 512,109.30 and 164,259.20 is: 246,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,406.20 : 512,109.30 = 164,259.20 : x
  2. Step 2: Convert to fraction form
    341,406.20/512,109.30 = 164,259.20/x
  3. Step 3: Cross multiply
    341,406.20x = 512,109.30 × 164,259.20
  4. Step 4: Simplify right side
    341,406.20x = 84,118,663,930.56
  5. Step 5: Solve for x
    x = 84,118,663,930.56/341,406.20
  6. Step 6: Final answer
    x = 246,388.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.